docs: def toints(self):
          """\
          Returns an iterable of integers interpreting the content of `seq`
          as sequence of binary numbers of length 8.
          """
          def grouper(iterable, n, fillvalue=None):
              "Collect data into fixed-length chunks or blocks"
              # grouper('ABCDEFG', 3, 'x') --> ABC DEF Gxx
              return zip_longest(*[iter(iterable)] * n, fillvalue=fillvalue)
          return [int(''.join(map(str, group)), 2) for group in grouper(self._data, 8, 0)]